Creamer sot ajsijclss of bjeegl



Aug. 22, 1933. o. ROTH, JR 1,923,542

CLEANER FOR ARTICLES OF METAL Filed Aug. 23, 1932 Patented Aug. 22, 1933UNITED STATES Application August 23,

1932, fiei'lell No. meme,

will lm Gem Mos-ch W319 My invention reletes to e, cleaner for articlesof metal by which the articles are cleaned elec trclytlcelly.

Electrolytic cleaning was peri ormeil heretofore 5 by contacting thearticles with another metal in an electrolyte. This mettiocl isinconvenient as it requires metal plates which are not elweiis readilyobtained and compecetively expensive.

lit is an object of my invention to peovitle c,

handy end cheap cleaner.

To this end, I @repere a, solid substance which, clteeolvecl, yields anelectrolyte, and wrap the site stance in 2. metal foil.

The cleaning of metal articles, such as solves, forks and spoons, whichere mode of, or plated with, some precious metal, usually silver, issome times climcult. Mechanical cleaning is ccjec tiomeblc because itwears articles. are plated, es is the rule at present, mechanicalcleaning gradually removes the plating lei-ye? enil the besemetcl belowis exposed. Articles in condition, and particularly forks ee spaces, areunfit for Tee method referred to en slimline electrclyte in v .iiifih eplate ci metal was coi tectefi with the articles for cleesi them. Onaccount of the difilculties with the metal plates, and also because theconcentration of the electrolyte was not properly selected, the methodfelled.

The drawbacks of the ole mettle-ll are over come according to myinventlcn. Tee re quirecl for the cleaning, l. e. the electrolyte cubstance and the metal foil, are e. single and handy unit.

The size cl the bloc; of electrolyte sulietencc is so detei'mined thatit yields the required cum- -'tity of electrolyte if cliseclved lllcg'uelstlty cf wetel". A suitable substance is calcined e e-6em It is esrecuirecl for the wcntity of we, ter in which it is dissolved, orslmeecl into lozenges or the like. The weighted uantity oi substance, orthe lclcclz or is mepped in a fall of mete-ll, usue aluminum, whichpcotects the substance ieom atmospheric imfiuencee.

In this manner a heady end cliirecle clecnei is provided. 4

the eeccmcmyiiig drawing, a, cleaner ew inveetlcn is lllustrctezl by Waycl exemole.

in the mewicg, l is the wrapper of foil, and 2 is the electrolytesubstance, here Show as e block 0'1 lczenge. c-vlotwly, it also cc inthe conc itiom ct powder.

For using $119619?! the foil 1 i'emovecl from the sci licence 2, thesubstence dissolved in the prescribed quantity of Water, the solution W5slightly heated if desired, the fell l placed in tl solution, and theel-ticle to be cleaned, for lsastence, e silver or plated. spoon, "lsbrought lzetc contact with the foil. The dirt is seen reoved in thismemier end the articles are per- W5 tly clee-n alter been rl csezi. withwater. 2 claim:

A method which comprises e solid body en electro iiegctive metal toll,seicl sclicl bccly being capable of forming em electeo, and subsequentlyslisselvim eelcl selicl in water to term c lictl'l using ifcfl es csource of electronesetlve in the bath for the cleenice; cl mete-lsurfaces.

OTTO ROTH, JR.

